<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="el-icon-search"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" prefix-icon="el-icon-search" type="password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
// import axios from 'axios'
export default {
  data () {
    return {
      // 登录表单的数据绑定对象
      loginForm: {
        username: '123',
        password: '123'
      },
      // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.post('/sys/login', this.loginForm)
        console.log(res)
        if (res.code !== 0) {
          return this.$message.error('登录失败！')
        }
        this.$message.success('登录成功！')
        // 1.将登录成功之后的token保存到客户端的sessionStorage中
        // 1.1项目中出了登录之外的其他api接口，所以将token保存在sessionStorage中
        // 1.2token只应在当前网站打开期间生效，所以将token保存在sessionStorage中
        console.log(res)
        // window.sessionStorage.setItem('token', res.userid)
        // const userId = await this.$http.post('find?id=' + res.userid)
        window.sessionStorage.setItem('token', res.token)
        console.log('token')
        // console.log(userId)
        // 2.通过编程式导航跳转到后台主页，路由地址是/home
        this.$router.push('/home')
      })
    }
    // login () {
    //   this.$router.push('/userhome')
    // }
  }
}

</script>
<style lang="less" scoped>
    .login_container{
        background-color: #2b4b6b;
        height: 100%;
    }
    .login_box{
        width:450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
    .avatar_box{
        height: 130px;
        width: 130px;
        border:1px solid #fff;
        border-radius: 50%;
        padding:10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
    .btns{
        display:flex;
        justify-content: flex-end;
    }
    .login_form{
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
</style>
